The URL keyword provides a convenient way of obtaining the resolved URL of a page
FROM https://example.com |> SELECT URL
If you’d like the returned value to be provided under a different alias simply use the AS keyword like so:
FROM https://example.com |> SELECT URL AS resolved_url
Going to the link lsd.so/redirect will redirect you to lsd.so so requesting URL from it would yield it as the returned value.
FROM https://lsd.so/redirect
|> SELECT URL
When you are interested in obtaining the available links on a page, what you may be interested in is not the URL keyword but simply grabbing the anchor elements from the page:
FROM https://lsd.so
|> GROUP BY a
|> SELECT a@href